Pipe-coiling machine.



L. C. SCHNEIDER.

PIPE GOILING MACHINE. APPLIUATION FILED P3317, 1909.

Patented July 13, 1909.

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LEOPOLD O. b'OHNElDERwOF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THEPlllliib DELPHIA PIPPl BENDlNG COMPANY, A CORPORATION 0F NEW JERSEY.

PIPE-comme MACHNE.

Specification o' Letters Patent.

Patented .Tiny 1e, ieee.

Original application filed August 21, 1908, Serial No. 449,626. Dividedand this application filed February 17, 19022.

Fig. 3 is a view, partly in elevation, partlyv in4 section, showingmeans for adjustingD holding the auxiliary back-ceiling or 28 may beadjusted to different angular posiand l tions with respect to the barack- 1 Upon the bar is mounted the relier 3.2,

Serial No. 478,443.

To all whom 'it may concern: ed thereon a vertical spindle 2 driven byan B e 1t known that LLEOPOLDOSCHNEIDER, electric motor, belt, or othersuitable source .5:3 a citizen of the United States, residing at ofpower. Secured to the spindle 2 and Philadelphia, county ofPhiladelphia, and driven thereby is the gear fi which meshes State ofPennsylvania, have invented cerwith and drives the gear 4 mounted upontain new and useful Improvements in Pipethe spindle 5. Carried by thespindles '2 OoilingMacliines, of which the following is and 5respectively are the rollers or rolls tu f1 SPGGENDMHML and 7, havingconcave periplieries to receive My invention relates to improvements inthe pipe, rod, or other stock, as well undera machine for ceiling oi'bending pipes, or stood in the art. The gear L and roller i", otherarticles, composed of metal, such as mounted upon the spindle 5, areadjusial'ile wrought iron, or other materials, and par toward and awayfrom the gear 3 and roller ce ticularly to a machine for ceiling orbending 6 by the screw 8 operating in the brat-kei il. the materialwhile cold. and square headed at 10 to receive a wrench Pipes, rods, andother forms of wrought or the like. To one side of the iindle .5 oniron, or other material, are non-uniform, as the spindle 11 is mounted arolfer 12, also bought in the open market, in hardness, having a'concaverim or periphery and slid- 7o thickness, or in other regards, and4 incoilable inwardly and outwardly under the coning oi bending them in themanner common trol of the adjusting screw 13, operating in heretofore inthe art, uniformity of ceiling bracket 14 and having the squared head1:3; or bending,` is not attained because of this and on the other sideof the rollers Gand Tis lack of uniformity in the stock material. aroller 16, also having` a concave riin or pe- It is the object of myinvention to proriphery and mounted upon the spindle 1T duce coils orbends which are uniform in and adjustable inwardly anti outwardly bycurvature or shape, and irrespective of this the screw itl, operatinglin bracket 19 am lack of uniformity in the material to be bent squareheaded at 20. The brackets 2l and or coiled. 22, bolted t-o the baseplate 1, are alined with so My invention resides, therefore, in a maeach other and support and secure the bar 2h chine for ceiling orbending rods or pipes, which may bev of square or other suitable orother fornis of material and comprises cross section. Movable along` thebar 2; means for over-ceiling or oval-bending the is the clamp 24 whichmay be clamped scpipes or rods to a curvature sharper than the curely tothe bar 23 at any dcsircdposition. en 'finish curvature, and thencoiling or bendingr As seen in Fig. 3the clamp 24 embraces the stockback to the desired sha e or curva# the bar and may be clamped snuglythereture. By this means, perfect y uniform to by tightening,l thebolt25 rl he top ol the coils or bendsrcan` be produced, irrespectiveclamp 2a is recessed to receive the cylindifwal of the irregularitiesand non-uniforn'iity of pin or pivot- 26 secured toor integral withthe:io the material of the stock operated upon. clamp 27 which embraces thebar 2S, which .My invention resides also in the features may be snuglyclamped thereto by the bolts hereinafter described and claimed. 29. Thepivot 26 has an angular groove iff'- For an illustration of onev of theforms my in which may engage the end oi the screu'h invention may take,reference is to be had threaded in tlielbracket-2el, thus previ-zuinig;.i5 to the accompanying drawing, in which: the clamp 27 from biting.outI ol er :may Figure 1 is a plan view of a ceiling or bcndfrom theclamp 24. By this pivotal conne ing machine involving my invention. Fig.tion between the clamps, each may be :u 2 is a vertical elevation,partly in section, justed to, different positions with respect tu of theback-ceiling or hack-bending means. their respective oars 2B and 255,and the bei' ico having): a coi'ieave rim or peripiiery, and mountedupon the spindle or pm 33 carried 10:3

Beyond the roller 2%??- is a bending means.

Referring to the drawing: A base plate 1, j of iron or other suitablematerial, has mount- I by the rod 2.5.

-greater or iinish diameter of three feet.

other words, at'the roller 16, the stock is oversimilar roller 34mounted upon a spindle or pin 35 carried by the block 36, which isslidable inwardlfy and outwardly on' the bar 28 by means o a screw 37provided with the hand crank 38, as seen in detail in Fig.y 2.

In the base plate 1 are provided a plurality of holes 39, in which maybe placed a pin or pins to prevent the rod 28 from rotating about thepivot 26 during the operation of the machine.

The operation is as follows: The pipe, rod, or other stock 40 is fed infrom the left, as viewed in Fig. 1, between the rollers 6 and 7, andlies against the roller 12.

spindle 2, the stock 40 is, fed or drawn toward the right and engages intheconcave periphery of the roller 16. This roller is set in, by screw18, a sufficient distance to cause the pipe to coil or bend, as wellunderstood in the art. By the action thus far described, the stock 40 isover-coiled or over-bent, tending to form a coil or bendv of sharpercurvature or less radius than the finish coil -diameter of less thanthree feet. The pi e or stock 40 is, however, guided between t e rollers32 and 34 which are set out far enough V to determine a coil o'r bend ofthree feet diameter, the operation being a local backbending orback-coiling after leaving the roller 16 from the lesser diameter to tien coiled or over-bent, and at the roller 32 the stock is back-coiled orback-bent to the finish diameter, the coiling or bending and backcoilingor back-bending occurring at and bev tween roller 16 and roller 32. Bythis overcoiling or over-bending and bac coiling or back-bending, thecoil or bend will take the desired nish diameter and the diameter oflthe finish coil will be perfectly uniform,

whereas, by merely setting the roller 16 in to a point to roduce athree-foot coil or bend, the finis coil lor bend will not be uniformlyof three feet diameter, but will vary considerably from oint to point,and the result is not a pe ectly uniform and smoothl coiled or bent pipeor stock.

It wl be noted that by the apparatus above described, the over-coilingor overbending and the back-ceiling or back-bending is accomplishedwithin less than a complete turn or coil or convolution, and, indeed,Within a small fraction of a complete bend or coil. Thus, theover-bending or over-coiling is accomplished at roller 16 andimmediately thereafter, and during the same continuous l stock 40 as itpasses between the rolls 6 and Due to fric- Y r tion and the powerdelivered through the 7 ma be made the same as or diHerent from theistance between the center of the pivot 26 and the axis of the stock 40as it passes between the rolls 32 and 34.

I have found that by the herein 'described machine, the capacity forcoiling stock is very greatly increased, and that an uniform coil orbend is produced, and is made much 1more rapidly and at far lesscostthan heretoore.

While I have shown two rollers 32 and 34 for the back-coiling orback-bending operation, it is to be understood that the roller 34 may beomitted, though its presence is preferable.

Upon the base plate 1 there may be provided a single roll or idler 43,or the double roll idler 44 having the rolls 45 and 46, the

latter adjustable by screw 37 and hand crank 38. It 1s to be understoodalso that the idlers, single or double roll, may be multiplied innumber. s

' While the advantages of my apparatus are available for the coiling orbending stock in heated condition, they are partlcularly available-tothe cold coiling or bending of pipes, rods, or other stock.

This application is a division of my application Serial No.v 449,626filed August 21, 1908.

What I claim is:

1. In a machine of the character described, means for continuouslyfeeding pipe, means for continuously locally coiling or bending the pipeto tend'to form a coil of less thanA finish diameter, and means forcontinuously locally back-coiling or back-bendin said pipe to form anuniform coil of finish diameter.

2. In a machine of the character described, means for continuouslyfeeding pipe or other stock, -a roll for o erating continuously uponsaid pipe or'stocii) to over-coil or over-bend the same, and a rolloperating subsequently and continuously upon said plpe or stock to,back-coil or back-bend the same to form a coil of uniform diameter.

3. In a machine of the character described, the combination with meansfor continuously feedn pipe or stock, of means for continuously ocallyover-coiling or over-bending said pipe or stock, means for continuouslyback-ceiling or back-bending the pipe or stock to form an uniform coilof finish diameter, and an adjustable mounting for s aid back-coiling orback-bending means.

" tinuously operating 1n op means-jor continuously fee inpiipe or stoel;

, or bending means encountered bysaid stoc [for continuously locallycoilinor said pipe orstock to back-coil i means for continuouslyr'feeding pipe, means l back-coil or `back-bendI said pipe or other sto'ck to form a-coil'of u iformdiameter.'

9. Ina machineof the haracter described, means for feeding pipe, callyupon said pipe' in a relatively sharply 4. In a machine of the-characterdescribed, a plurality of bending or ceiling means conosite directions,

past said plurality of means, t rst coilin o erating to locallyover-coil or over-bend t e same, and the means subsequently en* ga yedby said pipe or stock operating-to lo# bending said pipe'to form anuniform coil of cal y baclccoil or back-bend the same to finishdiameter. y l form a coil orl bend of uniform nish di- 10. In a machineof the character deameter. scribed, meansjfor feeding pipe, means o 5.-in a machine of the character described, erating locally upon said pipein a relative y sharply defined region 'for ceiling or-bending` forcontinuously locally ceiling or bending the pipe to tend to form a Acoilof less than the pipe to tend to form a coil ofless than iin-'l finisdiameter, and means .operating locally ish diameter, and meanscontinuously operating u on said pipe before a complete turn region foror convo ution is formed for back-ceiling or back-bending the same toform an uniform coil offinish diameter.

. 6. in a machine oi the character described, means for continuouslyfeeding pipe, means or bendinglthe pipe to tend to form a coil` of lessthan iinis diameter, and means located a short distance from said firstmentioned means. for continuously locally back-coilin or backbendingsaid pipe to form an uni crm coil of l finish diameter. 7. ln a machineoi' the character described, l means for feeding pipe or stock, a rollfer operating upon said pipe or stock to over-'ccil or over-bend thesame, and a roll located a short distance from said first mentioned rolland operating subsequently thereto upon or back-bend the same toform acoil of uniform diameter. l

8. ln a machine of the character described,

tol tend to form a coil of less than finish diack-coilingor'back-bending said pipe to :form an uniform coil of finish diameter. v'l 11. ln a machine of the character described, a plurality of rollsspaced apart, means for feeding pipe over said rolls in succession, aroll engaging said pipe between said separated rolls, the position of'said last mentioned roll, whereby the pi eis first overcoiled oroverbent and therea 'ter back-coiled crback-bent to finish diameter ofthe coil.

scribed, means, of separated' rolls over. which said pipe is ed insuccession, a roll engaging said ipe between Said separated rolls, andmeans or setting said last mentioned roll, whereby the pi first tendstoforni a coil of lessthan desirea nish diameter and to thereafter assumeuniform finish diameter.

In testimony whereof I have hereunto iixed my signature in l subscribingmeansferfeeding pipe or other stock, `a roll f or operating 4upon saidpipe or stock to over- Witnesses.

coil or over-bend the same, and a roll o LEOPOLD C. SCHNEIDER. i eratingupon. said pipe or stoclr. subsequent y Witnesses te said firstmentioned roll before the com le- G. M. HARDEN,

tion of a turn or convolution oi the .coi te T. FRANK PHINNY.'

defined region for culling or bending 'the'plpe andmeans for. adjusting.12. In a machine of the character de-I4 the combination with pipefeeding the presencel oi' the-tuml means operating .lo-

amet'er, and means for baclscoiling or back` upon said ipe in arelatively sharply defined

